Slide rail assembly and rail kit thereof

Abstract

A slide rail assembly includes a first rail, a second rail, a first locking device and a second locking device. The first rail includes a blocking part. The first locking device is arranged on the second rail and configured to lock the blocking part of the first rail when the second rail is moved to a first predetermined position relative to the first rail. The second locking device is arranged on the second rail and configured to lock the blocking part of the first rail when the second rail is moved to a second predetermined position relative to the first rail.

What is claimed is: 
     
       1. A slide rail assembly, comprising:
 a first rail comprising a blocking part; 
 a second rail movable relative to the first rail; 
 a first locking device arranged on the second rail, the first locking device comprising a first member and a second member, the first member comprising a first part, the second member comprising a second part, a first space being defined between the first part and the second part; and 
 a second locking device arranged on the second rail, the second locking device comprising a third member and a fourth member, the third member comprising a third part, the fourth member comprising a fourth part, a second space being defined between the third part and the fourth part; 
 wherein when the second rail is moved relative to the first rail from a retracted position to a first predetermined position along a first direction, the first space is configured to accommodate the blocking part of the first rail, such that the blocking part is locked by the first locking device; 
 wherein when the first locking device is operated to unlock the blocking part, and the second rail is moved relative to the first rail from the first predetermined position to a second predetermined position along the first direction, the second space is configured to accommodate the blocking part of the first rail, such that the blocking part is locked by the second locking device. 
 
     
     
       2. The slide rail assembly of  claim 1 , wherein when the second locking device is operated to unlock the blocking part, the second rail is movable relative to the first rail from the second predetermined position to the retracted position along a second direction. 
     
     
       3. The slide rail assembly of  claim 1 , wherein the first member further comprises a first elastic section, the first part is arranged at an end of the first elastic section, the second member further comprises a second elastic section, the second part is arranged at an end of the second elastic section. 
     
     
       4. The slide rail assembly of  claim 3 , wherein the first elastic section is located between the second rail and the second elastic section, the first elastic section and the second elastic section are tilted relative to the second rail. 
     
     
       5. The slide rail assembly of  claim 4 , wherein the second member further comprises a first extension section connected to the second elastic section, the second rail comprises a first supporting part configured to abut against the first extension section. 
     
     
       6. The slide rail assembly of  claim 1 , wherein the third member further comprises a third elastic section, the third part is arranged at an end of the third elastic section, the fourth member further comprises a fourth elastic section, the fourth part is arranged at an end of the fourth elastic section. 
     
     
       7. The slide rail assembly of  claim 6 , wherein the third elastic section is located between the second rail and the fourth elastic section, the third elastic section and the fourth elastic section are tilted relative to the second rail. 
     
     
       8. The slide rail assembly of  claim 7 , wherein the fourth member further comprises a second extension section connected to the fourth elastic section, the second rail comprises a second supporting part configured to abut against the second extension section. 
     
     
       9. The slide rail assembly of  claim 1 , wherein the first rail has a front end and a rear end, the blocking part is arranged adjacent to the front end. 
     
     
       10. The slide rail assembly of  claim 1 , wherein the first locking device and the second locking device are arranged at different positions on the second rail along a longitudinal direction of the second rail. 
     
     
       11. The slide rail assembly of  claim 10 , wherein the second rail comprises a first wall, a second wall and a side wall connected between the first wall and the second wall, the first locking device and the second locking device are arranged on the side wall of the second rail. 
     
     
       12. The slide rail assembly of  claim 1 , wherein the first space is smaller than the second space. 
     
     
       13. The slide rail assembly of  claim 1 , further comprising a third rail, wherein the first rail is movably arranged between the second rail and the third rail. 
     
     
       14. A slide rail assembly, comprising:
 a first rail comprising a blocking part; 
 a second rail configured to move relative to the first rail along a first direction to be in an extended status; 
 a first locking device connected to the second rail, the first locking device configured to block two sides of the blocking part of the first rail when the second rail is located at a first predetermined position relative to the first rail, the first locking device comprising a first member and a second member, the first member comprising a first part, the second member comprising a second part, a first space being defined between the first part and the second part, the first space being configured to accommodate the blocking part of the first rail when the second rail is located at the first predetermined position; and 
 a second locking device connected to the second rail, the second locking device configured to blocking two sides of the blocking part of the first rail when the second rail is located at a second predetermined position relative to the first rail. 
 
     
     
       15. The slide rail assembly of  claim 14 , wherein the second locking device comprises a third member and a fourth member, the third member comprises a third part, the fourth member comprises a fourth part, a second space is defined between the third part and the fourth part, the second space is configured to accommodate the blocking part of the first rail when the second rail is located at the second predetermined position. 
     
     
       16. A rail kit, comprising:
 a slide rail; 
 a first locking device arranged on the slide rail, the first locking device comprising a first member and a second member, the first member comprising a first elastic section and a first part arranged at an end of the first elastic section, the second member comprising a second elastic section and a second part arranged at an end of the second elastic section, a first space being defined between the first part and the second part; and 
 a second locking device arranged on the slide rail, the second locking device comprising a third member and a fourth member, the third member comprising a third elastic section and a third part arranged at an end of the third elastic section, the fourth member comprising a fourth elastic section and a fourth part arranged at an end of the fourth elastic section, a second space being defined between the third part and the fourth part. 
 
     
     
       17. The rail kit of  claim 16 , wherein the first elastic section is located between the slide rail and the second elastic section, the first elastic section and the second elastic section are tilted relative to the slide rail, the second member further comprises a first extension section connected to the second elastic section, the slide rail further comprises a first supporting part configured to abut against the first extension section. 
     
     
       18. The rail kit of  claim 16 , wherein the third elastic section is located between the slide rail and the fourth elastic section, the third elastic section and the fourth elastic section are tilted relative to the slide rail, the fourth member further comprises a second extension section connected to the fourth elastic section, the slide rail further comprises a second supporting part configured to abut against the first extension section. 
     
     
       19. The rail kit of  claim 16 , wherein the slide rail comprises a first wall, a second wall and a side wall connected between the first wall and the second wall, the first locking device and the second locking device are arranged on the side wall of the slide rail, the first locking device and the second locking device are arranged at different positions on the second rail along a longitudinal direction of the second rail.